64854533 has 2 divisors, whose sum is σ = 64854534. Its totient is φ = 64854532.

The previous prime is 64854523. The next prime is 64854547. The reversal of 64854533 is 33545846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46689889 + 18164644 = 6833^2 + 4262^2 .

It is a cyclic number.

It is not a de Polignac number, because 64854533 - 2¹² = 64850437 is a prime.

It is a super-2 number, since 2×64854533² = 8412220901296178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64854523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32427266 + 32427267.

It is an arithmetic number, because the mean of its divisors is an integer number (32427267).

Almost surely, 2^64854533 is an apocalyptic number.

It is an amenable number.

64854533 is a deficient number, since it is larger than the sum of its proper divisors (1).

64854533 is an equidigital number, since it uses as much as digits as its factorization.

64854533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 38.

The square root of 64854533 is about 8053.2312148603. The cubic root of 64854533 is about 401.7724118738.

The spelling of 64854533 in words is "sixty-four million, eight hundred fifty-four thousand, five hundred thirty-three".